import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 25397
 * Date: 2022-07-02
 * Time: 16:54
 */

@WebServlet("/getParameter")
public class GetParameterServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //预期浏览器传来一个形如这样的请求：/getParameter?userId=123&classId=456
        String userId=req.getParameter("userId");
        String classId= req.getParameter("classId");
        resp.getWriter().write("userId="+userId+",classId="+classId);

    }
}


